This set of the films is the DVD version in HD. For any of the changes made in 2011, this set has the best copy of the earlier shots. R2 before the rocks were added, puppet Yoda in TMP, etc. For ROTS, ANH, TESB, and ROTJ, there is little to no difference in the root source. For TPM, this is the original transfer from the master tapes. The made a new transfer for the 2011 BR. For AOTC, the colors an grain are noticeably different from this to the BR. That is the one film where this set has a better version than the BR.